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CORBA and RMI are "dead"?

843793Aug 11 2003 — edited Aug 11 2003
Hi,

I'm a Comp. Sci. student taking a course in CORBA and RMI and was wondering how relevant these technologies are out in the real world? I have a friend in industry who tells me that these technologies are "dead". He says XML has taken over as a communications standard.

Also, I am in the design phase of developing a 3D online game and I want to know if CORBA or RMI is fast enough to be used in a realtime application such as this (let's say I want to make 10 remote method calls per second to each of 50 clients). Can someone aim me at some benchmarks or performance figures?

Thanks all.

Comments

John O'Toole
Hi,

The sdo_gtype of your sample geometry is 3002 which suggests you are storing x, y, z values. i.e. heights in the z.
Based on your explanation of the data, it sounds like you should be using Linear Referencing - read about it here (
http://docs.oracle.com/cd/E11882_01/appdev.112/e11830/sdo_lrs_concepts.htm#BABIIFFH).
Note that use of Linear Referencing requires an Oracle Spatial license - Locator is not enough.

SDO_LRS has a variety of functions/operators which will help you achieve your goal.
E.g. SDO_LRS.LOCATE_PT
http://docs.oracle.com/cd/E11882_01/appdev.112/e11830/sdo_lrs_ref.htm#i85478

John
1 person found this helpful
1013173
Hi,

Thanks for the tip.
I used the LOCATE_PT function with the SDO_UTIL.GETVERTICES function and it works.

My query is (for hisghway id = '1000' and km = 5000):

select li.*, t.*
from HIGHWAYS li , table( sdo_util.getvertices( SDO_LRS.LOCATE_PT( li.geom, 5000 ) )) t
where li.id = '1000'
;
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Locked on Sep 8 2003
Added on Aug 11 2003
#remote-method-invocation-rmi
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